Yarn clamp for warp beams



Aug. 9, 1949. i K. KADJSH 6 YARN CLAMP FOR WARP BEAMS Filed May 18, 1946INVENTOR.

ZTTORNEYS Patented Aug. 9, 1949 1 T'h'isinvntidn relates to beamsf-onwhich yarns ,are wound, to be used; for 'i 'ampl'e, asthe warp finatwavi'rig opefaticinftq be 'c arried outon a 165m. More particularly theinvention is concfnd'with'abeamprovided with novel means -for'securingin place 'theiends of' theyarns that nets-be wodnd'the'rehn. Thenew yarn holding means frnaybe readily operated, -1nay be -used fejpeatelly 'i'zvi thoutrequiring repairs or adjust- -rnnt, and; may beinstalled innew or old beams V t At t e pres nt-tiine, the beams in usecornifionl'y i nclude a wooden core having flangesv at its-ends and thecore may have a lengthwise raweruspmsnn in its; surface. A screw 'orploy ed for securing the endscfthe yarn'to the core have beenunsatisfactory *but their use has "continued formally years.

Ihepresent "invention is, accordingly; directed to theZprovision of 'abeam having means. for securing the ends -of yarns thereto, which arenot subject to the objections "above setfcrth. The'newsecuring meansoperate with a clamping action and grip the yarns firmly, but withoutinjury thereto. A'plurality of the new clamping devices are mounted onthe core e f the "bain and they are so ins'talled' that, when,.-i-noperative condition, they do not project beyond the surface ofthebe'anij The devices are easily closed and released and they presentn'oparts toth'e yarns on which the latter can-become caught. p s'Fona'loettr understanding of the invention,

fiefer'efice' min "tenses to r the accompanying "arawis arrwneh Fig. 1is a view partly in elevation and partly in vertical section of a beamembodying the invention;

Fig. 2 is a plan view lot a clamping device used on the beam shown inFig. 1;

Fig. 3 is a sectional view on the line 3--3 of Fig. 2;

Fig. 4 is an enlarged sectional view on the line 44 of Fig. 1; and

Fig. 5 is an enlarged sectional view on the line 5-5 of Fig. 1.

is driven into the bottom of each depression reclaims. (c152 i2--1'2"5)Tli'e bam illustra'td in'Figfl includes a core .lq usu'ally of -wood,and a.-pair or -flanges. H atl 'qppcsite erl'ds ofithe .core. "The-coreisprovided with'a plura ityo-f channels 52in its surface. extending fromend to end of the core and tie bolts v i3 are rnounted in a-diametricalpair of thechannelsand extend through the'fianges, thebolts having nutson theirendsexposed beyond the flanges. I

Clamping devices l 5 are mounted in --0ne of the channels and eachdevice includes a mam- -ber l twof -U shaped cross-section andzpreferably made of metal. The 'member 15 -is-seated-in the channel andsecured in -place-by- -a=-plurality of screws li whichare threaded-th or h-opem ings" through the member A I 6 into: the bottom- -of thechannel. A clamping bar I 8 :is, pivotally .rnou rted at B9withinthe;--member =ifinear-one 59nd thereof and the bar has a; roundedbottom 13% an ng-itudi-n'al recesses 42D --in its--opp'osi-te sidesj thewalls of thesmember i-tsrnay be slitverticaliy at lfi f-near-their freeends to provide spring fingers il -which are-bent inwardly and enterrecesses 29;00 hold--the-barin= clamping position, whenit-isswungdownwardly betwee 5 the side 'walls :of member I 6.

At its free end the bari8 isnndercutto provide an overhanging endportion 22, --wh-iehvlies jaboveoneendaofa; lever 23, which ispivota-lly jmoufitdone pin -24,-theends-of *which enter openings in theside walls ofmember -16. The -other end of the-lever projects beyond theend of; n1eniber;l6 -and, when the-bar is in clamping position, theupper-surface of the exposed end of the lever lies at about -the levelorf -the tep the sidewalls of; member 1 6.

The clamping devices are-mounted a-row in their channel and *ex-tendfrom endto end of the core between the flangeswith onlyrsmall 4o spacesbetweensuccessive deviees.

A 5 fupward1y and-the ends of the yarns-forming the-first section of thewarp are laid acrossthe member I601? the -deviceand-beneath-the bar.{Ijheyarns are spread out along-the member-1 6, after which the bar isswung downwardly be tween the side walls of the member [5 to clamp theyarns between the bar and member. When the bar is forced fully down, thespring fingers 2| snap into the recesses in the sides of the bar to holdthe bar in clamping position. When the ends of the yarns in all thesections have thus been clamped to the core, the Winding operation maybe started. When the yarns have been unwound from the beam, the clampingdevices are exposed and the yarns may be quickly released by operationof the levers 23 of the devices. The beam is then ready to be woundagain.

All parts of the clamping devices lie within the channel when thedevices are in operative condition, so that, there are no exposed partson which yarns may catch. In the use of the devices, there is no wear onthe core and no damage done thereto, so that a beam provided with thedevices may be used for indefinite periods without attention.

The beam illustrated is of fixed length but it will be apparent that theclamping devices may be installed with equal facility in the core of abeam having flanges movable lengthwise of the core to vary the effectivelength of the beam.

I claim:

1. In a beam having a core with a longitudinal channel, a warp yarnclamp comprising a member of U-shaped cross-section seated in thechannel, a clamping member mounted adjacent one end within the firstmember for pivotal movement about an axis transverse to the firstmember, the clamping member being movable into and out of the firstmember, and means on one of the members engaging the other to hold theclamping member within the first member.

2. In a beam having a core with a longitudinal channel, a warp yarnclamp comprising a member of U-shaped cross-section seated in thechannel, a clamping member pivotally mounted adjacent one end betweenthe legs of the first member to swing about an axis transverse to saidmembers, the clamping member being movable into and out of the firstmember, and means on the first member engageable with the clampingmember to hold the latter within the first member.

3. In a beam having a core with a longitudinal channel, a warp yarnclamp comprising a member of U-shaped cross-section seated in thechannel, a clamping member pivotally mounted adjacent one end betweenthe legs of the first member to swing on an axis transverse to themembers and movable into and out of the first member, and spring meanson the first member engageable with the clamping member to hold thelatter within the first member.

4. In a beam having a core with a longitudinal channel, a warp yarnclamp comprising a member of U-shaped cross-section seated in thechannel, a clamping member mounted adjacent one end between the legs ofthe first member to swing about an axis transverse to the first memberand movable into and out of the first member, means on one of themembers engaging the other to hold the clamping member within the firstmember, and means mounted adjacent the free end of the clamping memberfor swinging said end upward- 1y.

5. In a beam having a core with a longitudinal channel, a warp yarnclamp comprising a member of U-shaped cross-section seated in thechannel, a clamping member pivotally mounted within the first member toswing lengthwise thereof and movable into and out of the latter, meanson one of the members engaging the other to hold the clamping memberwithin the first member. and a lever pivotally mounted adjacent the freeend of the clamping member and operable to swing said end upwardly.

6. A beam which comprises a core having a. longitudinal channel in itssurface, flanges mounted at opposite ends of the core, and a pluralityof separately operable clamping devices mounted within the channel inspaced relation lengthwise of the core, each device including a memberseated in the channel and a second member pivoted on the first member toswing lengthwise thereof and movable to and from clamping relation withthe first member.

'7. A beam which comprises a core having a longitudinal channel in itssurface, flanges mounted at opposite ends of the core, and a pluralityof separately operable clamping devices mounted within the channel inspaced relation lengthwise of the core, each device including a memberof U-shaped cross-section seated in the channel. a clamping bar pivotedat one end within the member to swing lengthwise thereof, and means onthe member engageable with the bar to hold the latter in clampingrelation to the member.

8. A beam which comprises a core having a longitudinal channel in itssurface, flanges mounted at opposite ends of the core, and a pluralityof clamping devices mounted within the channel in spaced relationlengthwise of the core, each device including a member of U-shapedcross-section seated in the channel, a clamping bar pivoted at one endwithin the member, means on the member engageable with the bar to holdthe latter in clamping relation to the member, and means pivotallymounted within the channel and operable to raise the free end of the barout of the channel.

9. A warp yarn clamp for mounting within a longitudinal channel in thecore of a Warp beam, which comprises a member of U-shaped crosssectionadapted to be seated wholly within said channel, a clamping barpivotally mounted at one end within the member to swing lengthwise ofand into and out of the latter, and cooperating means on the member andbar lying below the level of the top of the member for holding the barwithin the member.

KARL KADISH.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 223,801 Cumnock Jan. 27, 18801,368,415 Tanner Feb. 15, 1921 1,632,472 Gordon June 4, 1927 1,859,051Richter May 17, 1932

